Apparatus for priming a hypodermic needle with hazardous fluid

Details Apparatus for priming a hypodermic needle with hazardous fluid Apparatus for priming a hypodermic needle with hazardous fluid

1991-10-22

1992-09-15

Weiss, John G.

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604192, 604263, A61M 100

Patent

active

051473097

ABSTRACT:
The apparatus for priming a hypodermic needle with hazardous fluid and for retaining the hazardous fluid expelled from the needle in purging air from the needle includes a hypodermic needle and a tubular sheath member with a distal fluid containment chamber. The proximal end of the needle is adapted to be connected to a syringe or I.V. tubing, and is preferably removably mounted in the base portion of the sheath. The containment chamber includes a sealing membrane through which the needle extends, and a vent with a hydrophobic filter is disposed in the distal end of the containment chamber for venting air. A deflector shield is also provided within the containment chamber between the hydrophobic filter at the vent opening and the hypodermic needle for deflecting the hazardous fluid expelled from the distal end of the needle. The deflector shield preferably includes a planar member extending transversely within the containment chamber with a shield portion adjacent to the needle, and at least one fluid flow passage for communicating air from the needle through the vent.

REFERENCES:
patent: 3073307 (1963-01-01), Stevens
patent: 4085737 (1978-04-01), Bordow
patent: 4240425 (1980-12-01), Akhavi
patent: 4249530 (1981-02-01), Millet
patent: 4735311 (1988-04-01), Lowe et al.
patent: 4769026 (1988-09-01), Strung
patent: 4775376 (1988-10-01), Strung
patent: 4892521 (1990-01-01), Laico et al.
patent: 4950242 (1990-08-01), Alvarez
patent: 4986818 (1991-01-01), Imbert et al.

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